Донской, Анатолий Сергеевич. Расчет волновых процессов в пневматических линиях. Решение волнового уравнения [Электронный ресурс]: учебное пособие / А. С. Донской; Санкт-Петербургский политехнический университет Петра Великого, Институт энергетики и транспортных систем, Кафедра «Турбины, гидромашины и авиационные двигатели». — Электрон. текстовые дан. (1 файл : 587 Кб). — Санкт-Петербург, 2019. — Загл. с титул. экрана. — Свободный доступ из сети Интернет (чтение, печать, копирование). — Adobe Acrobat Reader 7.0. — <URL:http://elib.spbstu.ru/dl/2/s19-74.pdf>. — <URL:http://doi.org/10.18720/SPBPU/2/s19-74>.
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Period
|
Read
|
Print
|
Copy
|
Open
|
Total
|
|
Year 2019
|
Quarter 2
|
May
|
13
|
0
|
12
|
0
|
25
|
|
June
|
19
|
0
|
8
|
0
|
27
|
|
Quarter 3
|
July
|
2
|
0
|
1
|
0
|
3
|
|
August
|
7
|
0
|
5
|
0
|
12
|
|
September
|
4
|
0
|
3
|
0
|
7
|
|
Quarter 4
|
October
|
3
|
0
|
4
|
0
|
7
|
|
November
|
2
|
0
|
2
|
0
|
4
|
|
December
|
2
|
0
|
0
|
0
|
2
|
|
Year 2020
|
Quarter 1
|
January
|
2
|
0
|
2
|
0
|
4
|
|
February
|
2
|
0
|
6
|
0
|
8
|
|
March
|
5
|
0
|
2
|
0
|
7
|
|
Quarter 2
|
April
|
8
|
0
|
1
|
0
|
9
|
|
May
|
3
|
0
|
0
|
0
|
3
|
|
June
|
3
|
0
|
0
|
0
|
3
|
|
Quarter 3
|
July
|
4
|
0
|
0
|
0
|
4
|
|
August
|
3
|
0
|
0
|
0
|
3
|
|
September
|
10
|
0
|
0
|
0
|
10
|
|
Quarter 4
|
October
|
3
|
0
|
0
|
0
|
3
|
|
November
|
2
|
0
|
4
|
0
|
6
|
|
December
|
2
|
0
|
9
|
0
|
11
|
|
Year 2021
|
Quarter 1
|
January
|
2
|
0
|
5
|
0
|
7
|
|
February
|
2
|
0
|
4
|
0
|
6
|
|
March
|
0
|
0
|
0
|
0
|
0
|
|
Quarter 2
|
April
|
0
|
0
|
1
|
0
|
1
|
|
May
|
2
|
0
|
5
|
0
|
7
|
|
June
|
4
|
0
|
4
|
0
|
8
|
|
Quarter 3
|
July
|
4
|
0
|
4
|
0
|
8
|
|
August
|
2
|
0
|
2
|
0
|
4
|
|
September
|
3
|
0
|
3
|
0
|
6
|
|
Quarter 4
|
October
|
8
|
0
|
2
|
0
|
10
|
|
November
|
1
|
0
|
1
|
0
|
2
|
|
December
|
1
|
0
|
1
|
0
|
2
|
|
Year 2022
|
Quarter 1
|
January
|
2
|
0
|
0
|
0
|
2
|
|
February
|
2
|
0
|
4
|
0
|
6
|
|
March
|
6
|
0
|
2
|
0
|
8
|
|
Quarter 2
|
April
|
1
|
0
|
1
|
0
|
2
|
|
May
|
2
|
0
|
2
|
0
|
4
|
|
June
|
2
|
0
|
3
|
0
|
5
|
|
Quarter 3
|
July
|
3
|
0
|
1
|
0
|
4
|
|
August
|
9
|
0
|
2
|
0
|
11
|
|
September
|
1
|
0
|
1
|
0
|
2
|
|
Quarter 4
|
October
|
5
|
0
|
1
|
0
|
6
|
|
November
|
6
|
0
|
1
|
0
|
7
|
|
December
|
3
|
0
|
6
|
0
|
9
|
|
Year 2023
|
Quarter 1
|
January
|
3
|
0
|
3
|
0
|
6
|
|
February
|
6
|
0
|
3
|
0
|
9
|
|
March
|
0
|
0
|
4
|
0
|
4
|
|
Quarter 2
|
April
|
0
|
0
|
2
|
0
|
2
|
|
May
|
5
|
0
|
3
|
0
|
8
|
|
June
|
0
|
0
|
2
|
0
|
2
|
|
Quarter 3
|
July
|
0
|
0
|
1
|
0
|
1
|
|
August
|
4
|
0
|
2
|
0
|
6
|
|
September
|
1
|
0
|
5
|
0
|
6
|
|
Quarter 4
|
October
|
4
|
0
|
3
|
0
|
7
|
|
November
|
4
|
0
|
5
|
0
|
9
|
|
December
|
0
|
0
|
0
|
0
|
0
|
|
Year 2024
|
Quarter 1
|
January
|
0
|
0
|
3
|
0
|
3
|
|
February
|
1
|
0
|
4
|
0
|
5
|
|
March
|
1
|
0
|
7
|
0
|
8
|
|
Quarter 2
|
April
|
3
|
0
|
8
|
0
|
11
|
|
Total
|
202
|
0
|
170
|
0
|
372
|
